Liquid-gas split type heat dissipation module

Abstract

The present application belongs to the field of heat dissipation module, and relates to a liquid-gas shunt type heat dissipation module, which comprises a heat dissipation plate, a condensation area arranged on the heat dissipation plate, and heat dissipation pipes arranged in the condensation area. The heat dissipation pipes can be completed by stamping forming and brazing process or hot rolling inflation process. The heat dissipation plate surface is provided with hollow pipe spaces which are respectively set as condensation areas. The condensation areas are internally provided with refrigerants. The condensation areas are provided with at least one steam passage and at least one liquid return passage. The heat dissipation plate bottom surface is attached with heat dissipation pipes. The heat dissipation pipes are connected with the steam passage and the liquid return passage through connecting assemblies, respectively, to form a complete cycle. The product structure is reasonable and ingenious. The heat dissipation pipes are connected with the condensation area of the heat dissipation plate through three-way pipes and conduits by arranging the heat dissipation pipes on the heat dissipation plate bottom surface. This structure effectively avoids the problem of blocking the pipes when the heat dissipation plate is bent. The performance of the product is greatly improved compared with the prior art, the product is light in weight, and the manufacturing cost of the product is low.

Description

TECHNICAL FIELD

[0001] The application belongs to the technical field of electronic product heat dissipation, and relates to a liquid-gas shunt type heat dissipation module. BACKGROUND

[0002] The television side light heat dissipation structure on the market is formed by 2.5-3 mm aluminum material, and the product is heavy. With the gradual increase of the power of the television, the performance of the aluminum substrate cannot meet the customer demand. In view of the above problems, an improved scheme is provided, that is, a pipeline is arranged on the bottom surface of the heat dissipation plate, the pipeline and the condensation area inside the heat dissipation plate form a circulation structure, and the bottom of the heat dissipation plate is bent to be communicated with the pipeline. The problem existing in the process of this structure is that the pipeline is blocked when the heat dissipation plate is bent. At present, the two-phase flow heat dissipation scheme needs to increase an R angle at the bending position to ensure the smoothness of the air channel and the liquid channel, so as to ensure the performance of the product.

[0003] Now the customer demand is: 1. reduce the weight of the product, 2. improve the performance, and 3. the cost must be within a controllable range. SUMMARY

[0004] The application provides a liquid-gas shunt type heat dissipation module, which does not need to set an R angle at the bending position, can ensure the smoothness of the liquid-vapor channel, and can effectively improve the heat conduction efficiency.

[0005] According to the technical scheme of the application: a liquid-gas shunt type heat dissipation module, characterized by comprising a heat dissipation plate, a hollow condensation area is arranged on the surface of the heat dissipation plate, a refrigerant is arranged in the condensation area, the condensation area is provided with at least one vapor channel and at least one liquid return channel, a heat dissipation pipe is arranged on the bottom surface of the heat dissipation plate, the heat dissipation pipe is communicated with the vapor channel and the liquid return channel through a connecting assembly respectively, and a complete circulation is formed.

[0006] As a further improvement of the application, the connecting assembly comprises a tee joint and a pipe, one end of the pipe is connected with the interface of the tee joint, and the other end of the pipe is connected with the vapor channel or the liquid return channel.

[0007] The tee joint is arranged on the bottom surface of the heat dissipation plate, and the outer end of the tee joint at the end of the bottom surface of the heat dissipation plate is plugged by a plug.

[0008] As a further improvement of the application, each tee joint is connected with two pipes respectively, the pipe corresponding to the tee joint at the end of the heat dissipation plate is communicated with the vapor channel, and the pipe corresponding to the tee joint in the middle of the heat dissipation plate is communicated with the liquid return channel.

[0009] As a further improvement of the application, the tee joint comprises a body seat, a through hole is arranged on the body seat in the length direction, a branch hole communicated with the through hole is arranged on the top surface of the body seat, a limiting boss is arranged in the branch hole, and the pipe is communicated with the branch hole and positioned by the limiting boss.

[0010] As a further improvement of the present application, the branch hole and the through hole are both waist-shaped holes.

[0011] As a further improvement of the present application, the bottom of the heat dissipation plate is provided with a vertical bending part, and the heat dissipation pipe is attached to the bottom surface of the bending part.

[0012] As a further improvement of the present application, the condensation area is provided with a condensation channel, and the width of the condensation channel is uniform.

[0013] As a further improvement of the present application, the condensation area is provided with a plurality of regular hexagons, and a condensation channel is formed between two adjacent regular hexagons.

[0014] As a further improvement of the present application, the upper part of the condensation area is a condensation gaseous storage area, and the lower part of the condensation area is a condensation liquid storage area, and the condensation gaseous storage area and the condensation liquid storage area are in communication.

[0015] The steam channel is in communication with the upper part of the condensation gaseous storage area, and the upper end of the liquid return channel is in communication with the bottom of the condensation liquid storage area.

[0016] As a further improvement of the present application, the heat dissipation pipe is a harmonica pipe.

[0017] The technical effect of the present application is that the product structure is reasonable and ingenious, the heat dissipation pipe is arranged on the bottom surface of the heat dissipation plate, the heat dissipation pipe is in communication with the condensation area of the heat dissipation plate through the three-way pipe and the guide pipe, and this structure effectively avoids the problem of blocking the pipeline when the heat dissipation plate is bent. The performance of the product of the present application is greatly improved compared with the prior art, the weight of the product is lighter, and the manufacturing cost of the product is lower. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 It is a front view of the present application.

[0019] Figure 2 It is a rear view of the present application.

[0020] Figure 3 It is a perspective view of the present application.

[0021] Figure 4 It is a structural schematic view of the heat dissipation pipe and the connecting assembly.

[0022] Figure 5 It is a Figure 4 It is a local enlarged view of A in the middle.

[0023] Figure 6 It is an end surface schematic view of the heat dissipation pipe.

[0024] Figure 7 It is a connecting schematic view of the guide pipe and the three-way pipe. DETAILED DESCRIPTION

[0025] The specific embodiments of the present application are further described below with reference to the accompanying drawings.

[0026] Figures 1-7 The heat dissipation module comprises a heat dissipation plate 10, a condensation area 11, a vapor passage 12, a liquid return passage 13, a heat dissipation pipe 20, a tee joint 30, a pipe 40, a plug 50, etc.

[0027] As shown in the drawings, Figures 1-3 The present application is a liquid-gas split-flow type heat dissipation module, which comprises a heat dissipation plate 10, wherein a hollow condensation area 11 is arranged on the surface of the heat dissipation plate 10, and a refrigerant medium is arranged in the condensation area 11. The refrigerant medium can be Freon, water or other substances, which is adaptively selected according to specific conditions.

[0028] The condensation area 11 is provided with at least one vapor passage 12 and at least one liquid return passage 13, and the bottom surface of the heat dissipation plate 10 is attached with the heat dissipation pipe 20. The heat dissipation pipe 20 is connected to the vapor passage 12 and the liquid return passage 13 through a connecting assembly, respectively, to form a complete circulation.

[0029] As shown in the drawings, Figures 5-7 The connecting assembly comprises a tee joint 30 and a pipe 40. One end of the pipe 40 is connected to the interface of the tee joint 30, and the other end of the pipe 40 is connected to the vapor passage 12 or the liquid return passage 13.

[0030] Each tee joint 30 is connected to two pipes 40. The pipe 40 corresponding to the tee joint 30 at the end of the heat dissipation plate 10 is connected to the vapor passage 12, and the pipe 40 corresponding to the tee joint 30 at the middle of the heat dissipation plate 10 is connected to the liquid return passage 13.

[0031] The tee joint 30 is arranged on the bottom surface of the heat dissipation plate 10, and the outer end of the tee joint 30 at the end of the bottom surface of the heat dissipation plate 10 is plugged by a plug 50. The heat dissipation pipe 20, the tee joint 30, the pipe 40 and the condensation area 11 together with the refrigerant arranged in the condensation area 11 form a complete circulation structure.

[0032] In order to realize effective circulation and reciprocation during operation, it can be understood that the upper part of the condensation area 11 is a condensation gaseous storage area, and the lower part of the condensation area 11 is a condensation liquid storage area. The condensation gaseous storage area is connected to the condensation liquid storage area.

[0033] The vapor passage 12 is connected to the upper part of the condensation gaseous storage area, and the upper end of the liquid return passage 13 is connected to the bottom of the condensation liquid storage area.

[0034] As shown in the drawings, Figure 2As shown, two ends of the condensing area 11 are respectively provided with steam channels 12, which are led out from the end high points of the condensing area 11, the lower ends of the steam channels 12 are communicated with the corresponding conduits 40 on the three-way pipes 30, the conduits 40 are communicated with the heat dissipation pipes 20 through the three-way pipes 30; the bottom surface of the middle part of the condensing area 11 is communicated with a liquid return channel 13, the lower end of the liquid return channel 13 is communicated with the corresponding conduit 40 on the three-way pipe 30, and the corresponding conduit 40 is communicated with the heat dissipation pipe 20 through the corresponding three-way pipe 30.

[0035] The conduit 40 in the product is made of an aluminum pipe, the three-way pipe 30, the conduit 40 and the heat dissipation plate 10 are connected by welding, which can save bending space; the heat dissipation pipe 20 closely adheres to the bottom of the heat dissipation plate 10, which can ensure the bottom to have a working flow.

[0036] As shown in the figure, Figure 7 The three-way pipe 30 includes a body seat 31, the body seat 31 is provided with a through hole 32 in the length direction, the top surface of the body seat 31 is provided with a branch hole 33 communicated with the through hole 32, a limiting boss 34 is arranged in the branch hole 33, the conduit 40 is communicated with the branch hole 33 and is positioned by the limiting boss 34, and the branch hole 33 and the through hole 32 are both waist-shaped holes. The installation process of the conduit 40 is as follows: the lower end of the conduit 40 is inserted into the matching branch hole 33 until the lower end of the conduit 40 abuts against the limiting boss 34, and then the limiting boss 34 and the conduit 40 are welded and fixed.

[0037] The bottom of the heat dissipation plate 10 is provided with a vertical bending part, and the heat dissipation pipe 20 is attached to the bottom surface of the bending part. In specific production, the heat dissipation pipe is brazed and connected to the bending part at the bottom of the heat dissipation plate 10.

[0038] The condensing area 11 is provided with condensing channels, and the widths of the condensing channels are consistent. There are various design schemes for the setting mode of the condensing channels, and the scheme adopted in the product of the present application is as follows: the condensing area 11 is provided with multiple regular hexagons, and a condensing channel is formed between two adjacent regular hexagons. The condensing channel formed by the regular hexagons can achieve better circulation effect when working. In addition to the preferred scheme in the present application, the condensing channel can also be formed by the outer sides of structures in the shapes of circles, quadrilaterals, triangles or other shapes.

[0039] As for the forming mode of the condensing area 11, at least the following two modes can be adopted in specific production: one is to punch out the shape structure of the condensing area 11 on the heat dissipation plate 10 as a base plate, and then to braze an aluminum plate as a cover plate on the heat dissipation plate 10 to form the condensing area 11.

[0040] Another forming mode of the condensing area 11 is to use a blowing process, first, one side of two shearing formed aluminum plates of different thicknesses is roughened, dried, and cooled to room temperature; then, a graphite printing method is used to form a graphite passage on the surface of the thicker aluminum plate; the roughened surface of the thicker aluminum plate is pasted to the roughened surface of the thinner aluminum plate, three edges are aligned, and are riveted along the edges; the double-layer aluminum plate is placed into a continuous heating furnace and heated to a certain temperature and maintained for a certain time; the double-layer aluminum plate taken out from the continuous furnace is subjected to hot rolling to form a composite aluminum plate; the composite aluminum plate is subjected to softening annealing, and after being cooled to room temperature, a process hole is drilled to the graphite layer at the position of the graphite passage of the aluminum plate, and the air inlet pipe is pried high; the composite aluminum plate is placed on a large-tonnage oil press forming mold, the process hole is aligned with the air inlet, the upper mold plate is pasted to the upper surface of the aluminum plate, high-pressure fluid is filled into the pipeline to expand the pipeline, and a composite aluminum plate with a completely flat one side and a groove on the other side is formed, that is, the condensing area 11 is formed.

[0041] The heat dissipation pipe 20 adopts an extruded harmonica pipe, and a plurality of baffles arranged in the harmonica pipe divide the inner cavity of the heat dissipation pipe 20 into a plurality of channels penetrating in the length direction, and two sections of the heat dissipation pipe 20 are connected through the tee joint 30.

[0042] It can be understood that the wire passing hole is arranged on the heat dissipation plate 10 to supply wiring during use.

[0043] The working principle of the application is as follows: after the product is installed, during work, the heat source transmits heat to the evaporating area, that is, the heat dissipation pipe 20 of the application, and the refrigerant medium (usually water) becomes water vapor, which flows into the condensing area 11 along the steam passage 12, and after condensation in the condensing area 11, becomes liquid and is stored in the lower part of the condensing area 11, due to the rising of the refrigerant liquid level of the condensing area 11, the liquid water flows into the evaporating area (heat dissipation pipe 20) along the liquid return passage 13, and pushes the water vapor bubbles of the heat dissipation pipe 20 to flow into the steam passage 12, and then into the condensing area 11, and the water vapor is condensed into liquid water in the condensing area 11, and then the above steps are repeated to form a complete circulation process.

[0044] The product can effectively improve the performance, greatly reduce the weight, and the size is controllable during use, and the patent can be applied to the side light heat dissipation structure of a television, and can be applied to other electronic products according to specific conditions.

Claims

1. A liquid-gas split-flow heat dissipation module, characterized in that: The application relates to a heat dissipation plate (10) which is provided with hollow condensation areas (11) on the surface, the condensation areas (11) are internally provided with refrigerant, the condensation areas (11) are provided with at least one steam passage (12) and at least one liquid return passage (13), the heat dissipation plate (10) is attached with heat dissipation pipes (20) on the bottom surface, the heat dissipation pipes (20) and the steam passage (12) and the heat dissipation pipes (20) and the liquid return passage (13) are connected through connecting assemblies respectively, and a complete cycle is formed. The connecting assembly comprises a tee joint (30) and a pipe (40), one end of the pipe (40) is connected with the interface of the tee joint (30), and the other end of the pipe (40) is connected with the steam passage (12) or the liquid return passage (13). The tee joint (30) is arranged on the bottom surface of the heat dissipation plate (10), and the outer end of the tee joint (30) at the end of the bottom surface of the heat dissipation plate (10) is blocked by a plug (50). Each tee joint (30) is connected with two pipes (40), the pipe (40) corresponding to the tee joint (30) at the end of the heat dissipation plate (10) is connected with the steam passage (12), and the pipe corresponding to the tee joint (30) at the middle of the heat dissipation plate (10) is connected with the liquid return passage (13). The tee joint (30) comprises a body seat (31), the body seat (31) is provided with a through hole (32) in the length direction, the top surface of the body seat (31) is provided with a branch hole (33) connected with the through hole (32), a limiting boss (34) is arranged in the branch hole (33), the pipe (40) is connected with the branch hole (33) and is positioned through the limiting boss (34). The branch hole (33) and the through hole (32) are both waist-shaped holes. The upper part of the condensation area (11) is a condensation gaseous storage area, the lower part of the condensation area (11) is a condensation liquid storage area, and the condensation gaseous storage area and the condensation liquid storage area are connected. The steam passage (12) is connected with the upper part of the condensation gaseous storage area, and the upper end of the liquid return passage (13) is connected with the bottom of the condensation liquid storage area.

2. The liquid-to-air heat spreader module of claim 1, wherein: The bottom of the heat dissipation plate (10) is provided with a vertical bending part, and the heat dissipation pipe (20) is attached to the bottom surface of the bending part.

3. The liquid-to-air heat sink module of claim 1, wherein: The condensation area (11) is provided with condensation passages with the same width.

4. The liquid-to-air heat sink module of claim 3, wherein: The condensation area (11) is provided with multiple regular hexagons, and the condensation passages are formed between two adjacent regular hexagons.

5. The liquid-to-air heat spreader module of claim 1, wherein: The heat dissipation pipe (20) is a harmonica pipe.

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